No video of a rainy stage of the Tour of California

I was extremely disappointed with the Versus coverage of yesterday's tour of California stage. They had no footage of the stage because the helicopter could not take off. It was raining yesterday which obviously makes the helicopter pilots job much more difficult, but I can't remember a stage of the Tour de France without any television coverage. They still manage to get the video feed, even if it is broken up temporarily every once in a while. I am not a helicopter pilot, but I can't think of a reason why they could not fly. I will differ the judgement on safety to the Versus team as they probably know better than I why they couldn't fly.